Running examples in ‘ukgasapi-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: dataItemExplorer
> ### Title: Data Item Explorer API
> ### Aliases: dataItemExplorer
> 
> ### ** Examples
> 
> # Specify the data item(s) to enquire from API
> dataitems <- c('Storage Injection, Actual',
+                'Storage Withdrawal, Actual')
> 
> # Initialise API (requires internet connection for this step)
> response <- dataItemExplorer(dataitems,
+                              fromdate = '2013-10-01',
+                              todate='2015-09-30')
*   Trying 40.127.139.252...
* TCP_NODELAY set
* Connected to marketinformation.natgrid.co.uk (40.127.139.252) port 80 (#0)
> POST /MIPIws-public/public/publicwebservice.asmx HTTP/1.1
Host: marketinformation.natgrid.co.uk
Accept: text/xml
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 655

* upload completely sent off: 655 out of 655 bytes
< HTTP/1.1 404 Site Not Found
< Content-Type: text/html
< Server: Microsoft-IIS/10.0
< Date: Fri, 23 Feb 2018 09:34:25 GMT
< Content-Length: 2778
< 
* Connection #0 to host marketinformation.natgrid.co.uk left intact
Error: XML content does not seem to be XML: 'ï»¿<!DOCTYPE html>
<html>
<head>
    <title>Microsoft Azure Web App - Error 404</title>
    <style type="text/css">
        html {
            height: 100%;
            width: 100%;
        }

        #feature {
            width: 960px;
            margin: 75px auto 0 auto;
            overflow: auto;
        }

        #content {
            font-family: "Segoe UI";
            font-weight: normal;
            font-size: 22px;
            color: #ffffff;
            float: left;
            margin-top: 68px;
            margin-left: 0px;
            vertical-align: middle;
        }

            #content h1 {
                font-family: "Segoe UI Light";
                color: #ffffff;
                font-weight: normal;
                font-size: 60px;
                line-height: 48pt;
                width: 800px;
            }

        a, a:visited, a:active, a:hover {
            color: #ffff
Execution halted